1. Hydraulics-The study of pressure in liquids.

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2. Pneumatics-The study of pressure in gases.

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3. 4 Hydraulic Devices-Wind Turbines, Hydraulic Compressor, Hydraulic Generator, Hydraulic High Pressure Water Pump

4. 4 Pneumatic Devices-Air Compressor, Air Engines (for pneumatically powered vehicals,) Air Brakes (on buses and trucks,) Exercise Machines

5. a) Hydraulic Systems-A device that transmits an applied force through a liquid to move something else by means of pressure.

6. a) Pneumatic Systems-A system in which a gas, such as air, transmits a force exerted on the gas in an enclosed space.

5. b) How Hydraulic Systems Work-A hydraulic system is a system where a pump pushes hydraulic fluid through the hydraulic system under pressure.

6. b) How Pneumatic Systems Work-A pneumatic system is any system that uses air pressure to move either a turbine or a cylinder to accomplish some work.

7. Difference Between Pneumatic and Hydraulic Systems-

Pneumatic Systems-These systems have two main features:

a) Pneumatic systems use compressed gas such as air or nitrogen to perform work processes.

b) Pneumatic systems are open systems, exhausting the compressed air to atmosphere after use.

Hydraulic Systems-These systems also have two main features:

a) Hydraulic systems use liquids such as oil and water to perform work processes.

b) Hydraulic systems are closed systems, recirculating the oil or water after use

Particle Theory of Matter-

Unique

Moving

Attract

Small

Heat